Why does Helen agree to switch babies with Rose in the novel, The Two-Family House?

Helen is Abe's wife and the mother of four sons when she becomes pregnant with her fifth child. She has had some limited interaction with Judith and is jealous of the fact that Rose has the chance for that kind of relationship with her daughters. This is why Helen agrees to switching babies with Rose. Helen is a happy, healthy adult, though she struggles after losing Rose's friendship. That loss leaves a gaping hole in her life that grows to larger proportions after Teddy's death.